Integrate VDA with WebRTC.

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index 7727b885834c82fd426325adec4d8c779f266f56..110e9e1df55321602883d5a88ee86c3ebc8c6bf4 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -65,6 +65,7 @@
 #include "content/renderer/media/media_stream_center.h"
 #include "content/renderer/media/media_stream_dependency_factory.h"
 #include "content/renderer/media/peer_connection_tracker.h"
+#include "content/renderer/media/renderer_gpu_video_decoder_factories.h"
 #include "content/renderer/media/video_capture_impl_manager.h"
 #include "content/renderer/media/video_capture_message_filter.h"
 #include "content/renderer/memory_benchmarking_extension.h"
@@ -848,6 +849,27 @@ void RenderThreadImpl::PostponeIdleNotification() {
   idle_notifications_to_skip_ = 2;
 }
 
+scoped_refptr<media::GpuVideoDecoder::Factories>
+RenderThreadImpl::GetGpuFactories() {
+  const CommandLine* cmd_line = CommandLine::ForCurrentProcess();
+  scoped_refptr<media::GpuVideoDecoder::Factories> gpu_factories;
+  WebGraphicsContext3DCommandBufferImpl* context3d = NULL;
+  if (!cmd_line->HasSwitch(switches::kDisableAcceleratedVideoDecode))
+    context3d = RenderThreadImpl::current()->GetGpuVDAContext3D();
+  if (context3d) {
+    scoped_refptr<base::MessageLoopProxy> factories_loop =
+        RenderThreadImpl::current()->compositor_message_loop_proxy();
+    if (!factories_loop.get())
+      factories_loop = base::MessageLoopProxy::current();
+    GpuChannelHost* gpu_channel_host =
+        RenderThreadImpl::current()->EstablishGpuChannelSync(
+            CAUSE_FOR_GPU_LAUNCH_VIDEODECODEACCELERATOR_INITIALIZE);
+    gpu_factories = new RendererGpuVideoDecoderFactories(
+        gpu_channel_host, factories_loop, context3d);
+  }
+  return gpu_factories;
+}
+
 /* static */
 void RenderThreadImpl::OnGpuVDAContextLoss() {
   RenderThreadImpl* self = RenderThreadImpl::current();